Spark plug wiring 1991 Jeep Cherokee?
Take a look at the distributor cap. It should have a "1" on it. That goes to the front of the engine. The rotor turns clockwise when looking at it from the front. The next wire is going to be 3. Plug that wire into the 3rd plug from the front. The next one is 2. Plug that wire into the 2nd plug. The final one is 4. Plug that into the furthest plug.